Simplify wording of function to convert an integer to a byte sequence

Author: twiss

spec/Overview.html

@@ -625,10 +625,10 @@ <h2>Terminology</h2>
           and then considering each consecutive sequence of 8 bits in that string as a byte.
         </p>
         <p>
-          When this specification says to <dfn id="dfn-convert-integer-to-byte-sequence">convert a non-negative
+          To <dfn id="dfn-convert-integer-to-byte-sequence">convert a non-negative
           integer |i| to a byte sequence of length |n|</dfn>, where |n| * 8
-          is greater than the logarithm to base 2 of |i|, the user agent must
-          first calculate the binary representation of |i|, most significant bit first,
+          is greater than the logarithm to base 2 of |i|,
+          calculate the binary representation of |i|, most significant bit first,
           prefix this with sufficient zero bits to form a bit sequence of length |n| * 8, and
           then return the [= byte sequence =] formed by considering each consecutive
           sequence of 8 bits in that bit sequence as a byte.